Holder for use with vertical type spinning ring



A. J. WAYSON May 30, 1967 HOLDER FOR USE WITH VERTICAL TYPE SPINNINGRING Filed April 27, 1966 I 6y Maia *W United States Patent 3,321,900HOLDER FOR USE WITH VERTICAL TYPE SPINNING RiNG Andrew J. Wayson,Needham, Mass., assignor to Merrirnan Inc, a corporation ofMassachusetts Filed Apr. 27, 1966, Ser. No. 545,745 Claims. (Cl.57-.-l20) This invention relates to the textile industry and isparticularly concerned with spinning rings and spinning ring holders.

More specifically, the invention relates to a vertical type spinningring made of porous metal and a holder of novel construction forsupporting the ring. The holder construction not only facilitates thefeeding of oil or other suitable lubricant to the spinning ring so thatit may be readily absorbed and transmitted to the working surfaces ofthe ring which are engaged by the traveler as it moves thereabout duringthe spinning operation but also permits the holder to be die cast.

Porous spinning rings of the type herein disclosed are well known in thetrade, having been extensively in use for over a decade. One of theproblems that has always confronted the industry in the use of porousmetal rings is the provision of eificient means for supplying oilthereto. Heretofore, wicks of various types have been generally utilizedand still are to a large extent. Wicks, however, have certainundesirable features in connection with the installation of original andreplacement rings in the holders. In recent years, efforts have beendirected toward means for supplying oil in a manner which did notrequire the use of the wicks, and such constructions have now come intouse to a significant extent.

In the wickless type construction, the vertical ring has a grooveextending circumferentially about its exterior. This groove is adaptedto receive a cooperating holder of the conventional split type whichpermits suflicient spreading of the holder to allow the ring to bedropped therewithin. After the ring has been clamped in position withinthe holder, the split ends are sealed to prevent oil leakage.Additionally, the line of engagement of the holder with the ring at theupper and lower edges of the ring groove may be sealed to preventleakage of oil.

In the prior art Wickless constructions, various means of inducing theoil to spread about the entire circumference of the ring have been used.The source of supply of oil may be either in the form of an individualreservoir at each ring or a common source of oil for a group of rings.In the latter case, oil is fed by suitable piping to each of the rings.In either case, the oil is under some pressure to pass through anopening in the holder to reach the ring. It may be carried around thering by means of a single subsidiary circumferential groove in the ring;or there have been other constructions in which the oil is carried aboutthe rings by means of a plurality of circumferentially extending smallgrooves on the interior wall of the holder or the exterior wall of thering. The best practice requires that the oil reach as large a verticalsurface of the ring as possible so that the oil may then travel quicklyand uniformly through the ring to the working surfaces.

From a cost standpoint, it is preferable that the oil distributing meansbe incorporated in the holder rather than in the ring because theholder, once installed on the spinning frame, does not have to bereplaced since there is no active wear on the holder. The rings,however, do have to be replaced, and therefore it is preferable that therings be made as economically as possible. The powdered metal rings arecustomarily formed in suitable dies before being sintered and then,after sintering, the groove or grooves in the outer wall may be readilymachined therein and the top and bottom edges rounded to conventionalconfiguration. Likewise the holders may be die cast but, where there areto be circumferential grooves about the interior wall of the holder,these grooves must be subsequently machined therein by a separate operation. Thus, heretofore, it has not been possible to make by the diecasting method a holder complete with circumferential oil distributinggrooves therein.

With the foregoing in mind, the present invention is directed to aconstruction in which a holder may be die cast and include therein meansfor suitable distribution of oil to the outer surface of the ring groovewithout further machining of the holder. This result is achieved throughthe use of vertical grooves extending about the interior wall of theholder which permits removal of the holder from the dies after thecasting operation has been completed as is understood by those familiarwith casting procedures. Such removal would not be possible if theholder contained the circumferential grooves of the prior artstructures.

The invention will be more clearly understood as the descriptionproceeds with the aid of the accompanying drawings in which:

FIG. 1 is an exploded view of a portion of a holder and a vertical typering supported thereby;

FIG. 2 is a vertical section of the holder and ring in operativerelationship;

FIG. 3 is a horizontal section of a portion. of the holder and ringpositioned thereagainst taken on the line 3-3 of FIG. 1;

FIG. 4 is a modification of the holder and ring structure;

FIG. 5 is another modification of the holder and ring structure; and

FIG. 6 is similar to FIG. 4 except that the lower ends of the groovesare closed only partially by the holder structure.

Referring now to the drawings, 2 is a perspective view of a portion of asplit type holder incorporating the invention which may be mounted inconventional manner on ring rail 4. The numeral 6 indicates afragmentary portion of a vertical type spinning ring made of porousmetal and having a shallow circumferential groove 7. Ring 6 may besupported by the holder 2 when the latter has been sprung apartsufficiently to permit such insertion.

The holder is of novel construction. The entire inner vertical surfaceof the holder except preferably a short plane surface 9 at the splitends consists of a plurality of vertically extending grooves 8 which maytake the form of V-shaped teeth having vertical flat facing surfaces.Alternatively, the grooves may have any other configuration, such as,for example, semi-cylindrical vertical grooves. Also the grooves may beof any width or depth, but preferably there will be a relatively largenumber of grooves so that the apexes or lands 10 of the grooves 8 willprovide many support points for the ring when the latter is clamped inposition therein. The total of the spaces between the lands of the teethgreatly exceeds the land area engaging the ring.

The grooves 8, open at top and bottom, could extend for the entirevertical dimension of the holder as suggested by the small bracketedsection marked M in FIG. 1. Preferably, however, the lower ends of thegrooves are closed by a solid circumferential portion 12 which extendsabout the lower periphery of the holder 2. The interior surface 14 ofportion 12 is preferably in vertical alignment with the apexes 10 of thegrooves 8. The vertical dimension of the holder is such that the uppersurface 16 and the lower surface 18 fit snugly within an upper surface20 and a lower surface 22 of the groove 7 in ring 6. The outer upperwall 19 of the holder is preferably in alignment with the outer upperwall of the ring to prevent any interference with the traveler.

Thus when the ring 6 is mounted in the holder 2 the arrangement will beas shown in FIG. 2. The vertical wall 24 of the circumferential groovethat extends about the exterior of ring 6 rests firmly against interiorsurface 14 of portion 12 and the apexes of the vertical grooves 8 inholder 2. In this manner when the split ends of the holder are drawntogether in conventional manner the ring will be firmly held about itsentire circumference by engagement with the parts 10 and 14 of theholder.

At any convenient point in its circumference the holder has a hole 26extending generally horizontally therethrough, which hole is inconnection with an oil supply tube 28 which may lead either to a silotype reservoir 30 or to other piping connected to a common source ofoil. The inner end of hole 26 opens into a vertical space between thewalls 30 and 32 (see FIG. 3) of adjacent teeth at that location. Thering 6 additionally includes a secondary circumferential groove 34 intowhich oil from passage 26 may freely flow. The oil is carried by groove34 quickly about the entire circumference of the ring. However, sincethe vertical extent of the groove 34 is small, it will be appreciatedthat the vertical grooves 8 provide the cooperating means that allowsthe oil to flow upwardly and downwardly to cover the entire verticalarea of wall 24 except the small lower portion that rests against holderwall 14.

In this manner, Without the use of wicks and using only the inherentstructure of the ring and holder, the oil is readily received anddisposed against a vertical surface which constitutes a large part ofthe vertical dimension of ring 6. The distributed oil is easily absorbedby the ring and transmitted to the working surfaces which are indicatedby the numerals 36.

As previously noted, it will be obvious that the ring 6 may be made bylow cost procedures. The ring is die cast, sintered, and the top andbottom edges rounded by conventional practice. Then, by a singlemachining operation, the outer circumferential groove having the top andbottom surfaces 20 and 22 and wall 24 and the subsidiary groove 34 maybe readily produced.

The holder 2 by virtue of the vertical grooves 8 may now be die cast ina single operation. The die for the holder 2 could be split at either ofthe levels A or B indicated in FIG. 1. After the casting operation iscompleted, the upper portion of the die may be withdrawn upwardly, afterwhich the holder may be lifted from the lower portion. It will beunderstood that the passage 26 likewise may be simultaneously cast inthe holder or drilled thereafter.

The configuration and vertical position of the circumferential ringgroove 34 may be varied at will, the only requirement being that it beof such dimension and ata vertical location so as to permit the readymovement of oil from passage 26 about the ring circumference so that allof the holder grooves 8 may be supplied by the oil which, being underforced or gravity pressure, will rise to the full height of grooves 8.

To avoid entrapment of air in grooves 8 at the time of insertion of anew ring in the holder, it would probably be desirable to spreadmanually a layer of oil on the grooves 8. Since the grooves 8 arenormally of small dimension, such spreading of oil thereon will fill thegrooves 8 to such extent that any air initially trapped therein will benegligible and not affect the introduction of oil into ring 6 throughsurface 24. To facilitate initial oil transmission the rings prior touse may be impregnated with oil by the vacuum process.

While the ring 6 shown in the drawing is of conventional'vertical type,it will be understood that any other configuration of vertical ring,such as, for example, the so-called conical ring, may be utilized withequally satisfactory results with the holder disclosed herein. It willalso be recognized that, while the grooves 8 are preferably vertical tofacilitate removal of the upper portion of the die therefrom, thegrooves could be made somewhat helical, the extent being controlled bythe possibility of removal of the upper die by a simultaneous twistingand lifting movement. There would ordinarily be no advantage to suchconstruction, but it is mentioned as being within the scope of thisinvention even though the grooves will be referred to in the claims asvertical grooves. That is to say, when the term vertical grooves is usedin the claims, it contemplates any type of grooves permitting separationof the dies from the holder after casting in the direction of thevertical axis of the holder. By such arrangement, the holder may be diecast in a manner that does not require any further machining ormodification of the interior vertical surface of the holder.

The holder 2 may be of powdered metal capable of absorbing oil, butpreferably it will be of a non-absorbent type of metal or other suitablematerial, such as plastic for one example. If holder 2 is made of porousmetal, then the exterior surfaces will be coated with a conventionalsealing material to prevent oil leakage.

A modified form incorporating the same principles is shown in FIG. 4.The holder has its lower portion 40 extending inwardly a short distancebeyond the apexes 10 of teeth 8. Portion 40 forms a flange whichinterlocks with a shallow groove 42 at the bottom of the main groove 7.

Holder 2 of the split type has sufiicient flexibility to permit theadditional opening thereof to allow introduction of ring 6. The flange40 and groove 42 cooperate to minimize escape of oil at the bottomsurface 22 of groove 7.

A further modification is shown in FIG. 5. Here the ring groove 44 thatcooperates with the holder is of small vertical dimension. It is adaptedto receive the inwardly extending flange 46 so that the ring will beheld securely in the holder against vertical displacement. The apexes 10of grooves 8 in holder 2 engage directly against the outer wall 48 ofthe ring.

Escape of oil from the upper ends of grooves 8 is prevented by a sealingring 50 of suitable material which may be placed in position after thering has been mounted in the holder.

The upper side of groove 44 may be cut away circumferentially as at 52to provide an oil passage to the grooves 8 acting in the same manner asgroove 34 shown in FIGS. 1, 2 and 3.

FIG. 6 shows a construction similar to FIG. 4 except that the flange atthe bottom of the holder is increased in diameter as at 54 thereby onlypartially closing the lower ends of grooves 8. The cooperating part 56of the ring 6 which engages flange 54 provides the remainder of theclosure for grooves 8. The sealing effect of the constructions in FIGS.4 and 6 is about the same.

It is intended to cover all changes and modifications of the examples ofthe invention herein chosen for purposes of the disclosure which do notconstitute departures from the spirit and scope of the invention.

I claim:

1. A split type holder for a vertical type spinning ring of porousmetal, said holder including as an integral part thereof means fordistributing oil vertically over the cooperating outer wall of a ringwhen clamped in position within said holder, said holder being made ofcastable metal and said oil distributing means characterized by aplurality of vertical grooves located in the inner wall of said holder,the lands between said grooves acting to engage and hold said ringagainst rotation with respect to said holder when the holder is clampedthereabout, said holder having a passage therethrough for delivering oilto a localized part of said ring when clamped therein that communicateswith said grooves.

2. A split type holder as set forth in claim 1, further characterized bythe total circumferential extent of said lands being less than the totalcircumferential space between said lands.

3. A split type holder as set forth in claim 1, further characterized bythe lower ends of said grooves being closed so that the lower portion ofsaid holder that grips said ring will be in the form of a narrowcontinuous cylindrical band whose internal diameter is not greater thanthe interior diameter of said lands.

4. A split type holder as set forth in claim 1, further characterized bysaid grooves being in the form of adjacent V'shaped teeth.

5'. A split type holder as set forth in claim 1, further characterizedin that the length of said vertical grooves in said holder is more thanone-half the vertical dimension of said ring engaging part of saidholder, said grooves being at least partially closed at their lower endsby a flange integral with the material between said grooves, said flangehaving a cylindrical inner surface for engaging a correspondingcooperating cylindrical surface on a spinning ring mounted in saidholder.

References Cited UNITED STATES PATENTS 2,964,899 12/1960 Wayson et a1.57120 3,008,286 11/1961 Wayson 57-120 3,045,417 7/1962 Wayson et al.57120 3,107,480 10/1963 Wayson 57-120 FRANK J. COHEN, Primary Examiner.

1. A SPLIT TYPE HOLDER FOR A VERTICAL TYPE SPINNING RING OF POROUSMETAL, SAID HOLDER INCLUDING AS AN INTEGRAL PART THEREOF MEANS FORDISTRIBUTING OIL VERTICALLY OVER THE COOPERATING OUTER WALL OF A RINGWHEN CLAMP IN POSITION WITHIN SAID HOLDER, SAID HOLDER BEING MADE OFCASTABLE METAL AND SAID OIL DISTRIBUTING MEANS CHARACTERIZED BY APLURALITY OF VERTICAL GROOVES LOCATED IN THE INNER WALL OF SAID HOLDER,THE LANDS BETWEEN SAID GROVES ACTING TO ENGAGE AND HOLD SAID RINGAGAINST ROTATION WITH RESPECT TO SAID HOLDER WHEN THE HOLDER IS CLAMPEDTHEREABOUT SAID HOLDER HAVING A PASSAGE THERETHROUGH FOR DELIVERING OILTO A LOCALIZED PART OF SAID RING WHEN CLAMPED THERIN THAT COMMUNICATESWITH SAID GROOVES.